// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/compiler/refs-map.h"

namespace v8 {
namespace internal {
    namespace compiler {

        using UnderlyingMap = base::TemplateHashMapImpl<Address, ObjectData*, AddressMatcher,
            ZoneAllocationPolicy>;

        RefsMap::RefsMap(uint32_t capacity, AddressMatcher match, Zone* zone)
            : UnderlyingMap(capacity, match, ZoneAllocationPolicy(zone))
        {
        }

        RefsMap::RefsMap(const RefsMap* other, Zone* zone)
            : UnderlyingMap(other, ZoneAllocationPolicy(zone))
        {
        }

        RefsMap::Entry* RefsMap::Lookup(const Address& key) const
        {
            return UnderlyingMap::Lookup(key, Hash(key));
        }

        RefsMap::Entry* RefsMap::LookupOrInsert(const Address& key, Zone* zone)
        {
            return UnderlyingMap::LookupOrInsert(
                key, RefsMap::Hash(key),
                []() { return nullptr; },
                ZoneAllocationPolicy(zone));
        }

        uint32_t RefsMap::Hash(Address addr) { return static_cast<uint32_t>(addr); }

    } // namespace compiler
} // namespace internal
} // namespace v8
